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| Commodity | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 | 2011 |
| Roller chain of iron/steel | $3,366,805 | $4,454,666 | $4,727,046 | $5,653,673 | $5,277,483 | $4,746,838 | $4,564,015 |
| Articulated link chain other than roller chain, of iron/steel | $945,570 | $2,059,740 | $1,251,745 | $1,430,026 | $1,098,768 | $1,832,272 | $2,453,098 |
| Parts of articulated link chain of iron/steel | $429,214 | $617,421 | $345,117 | $1,125,779 | $290,719 | $247,559 | $439,052 |
| Skid chain of iron/steel | $7,387 | $10,088 | $8,541 | $5,301 | $10,452 | $8,133 | $153,128 |
| Stud-link chain of iron/steel | $164,657 | $451,490 | $476,037 | $121,121 | $448,762 | $172,154 | $416,095 |
| Welded link chain of iron/steel | $250,186 | $282,287 | $535,881 | $345,295 | $149,143 | $246,519 | $561,947 |
| Chain, of iron/steel, n.e.s. in 73.15 | $857,320 | $699,248 | $503,010 | $1,483,643 | $1,244,402 | $1,065,314 | $1,490,199 |
| Parts of chains (excl. articulated link chain), of iron/steel | $459,828 | $401,502 | $714,182 | $1,162,046 | $1,329,243 | $2,229,716 | $1,231,054 |
| Total | $6,480,967 | $8,976,442 | $8,561,559 | $11,326,884 | $9,848,972 | $10,548,505 | $11,308,588 |
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